Punching and riveting machine



F. Y. PEARNE.

PUNCHING AND RIVETING MACHINE.

APPLICATION FILED MAY1.1916.

l ,$05,972. Patend June 3, 1919.

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IFFICE FRANK Y. PEARNE', OF LOS ANGELES, CALIFORNIA.

PUNCHING AND RIVETING MACHINE.

' Specication of Letters Patent.

Patented June 3, i919.

Application filed May 11, 1916. Serial No. 96,822.

To all whom t may concern:

Be it known that I, FRANK Y. PEARNE, a citizen of the United States, and residing in Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Punching and Riveting Machines, of which the following is a specication.

This invention relates to punching and riveting machines and more especially to machines of that character called round seamers for joining sections of pipe formed of sheet metal by side seaming and the principal object of the invention is to provide a tool carrier in which the tools may be adjusted without delaying the work thereon. I

It. is also an object of the invention to reduce the number 'of tools used and the time to effect their change, since the ease of adjustment allows of the double use of one of the tools carried thereby.

It is a further object of the invention to provide for this combined adjustment and change of tool, a single mechanism that will operate the same easily and quickly, lock* ing the tools at the same time in the desired position and adjustment.

In the drawings accompanying this speciication, l y

Figure l, is a side elevation of a round seamer of well known form showing the improved tool carrier applied thereto, the combined tool being shown as laying the lap after the same has been riveted.

Fig. 2 is a front elevation of the improved tool carrier on a larger scale in the unengaged position in relation to the stake shown, a portion of the head and carrier being broken away to clearly show the guiding means for the tool holders..

Fig. 3 is a central vertical section through the head and tool carrier showing the mechanism for adjusting the tool holders the carrier being in the same position as shown in Fig. 2 butl the holder having a punch inserted being in operative position.

In the use of punches, riveters and lap layers in machines of the class described it is a common method to shift the saine in a plane transversely to the stake, thus requiring a shiftable member in the stake t o successively act as an anvil and a die in the plane of the tools, complicating the movements by the operator and frequently resulting in accidents and loss of time.

In mechanisms in which the tools are shifted in planes of their own, there is lack of adjustment; necessary because of the wearing of theftools and variations in the thickness of stock.

rlhis invention overcomes the above .difliculties'by providing an adjustable mech* anism for the tools, thereby reducing the number required as already pointed out, as well as placing the tools in line with the aXis of the stake so that this portion of the machine `need not be weakened, thereby increasing the life of the stake as well as providing a convenient means of relieving undue strain.

N umerals are used throughout the drawing to designate the different parts of the mechanism, 5 designating the frame designed to rest upon and be secured to a foundation approximately level with the iioor, and being provided with the arm G extending upwardly and outwardly over the stake 7.

The arm preferably terminates in a head 8, there being suflicient throat or clearance provided to accommodate one or more sections of pipe as desired, this arm and head forming bearings for the shaft 9, which is provided with the drive wheel 10 and dog clutch 11, operated by foot or otherwise to reciprocate the tool carrier 12 slidably mounted in the vertical slides of the head 8.

A sliding block 14 in the carrier embraces the eccentric 15 on the shaft 9, the shaft4 as is customary extending beyond the eccentric and being provided with a brake 16.' and holes in the end 17 to receive a hand operating lever for turning the shaft slowly for adjustment and testing purposes. v

A plate 18 secured to the front of the head confines the carrier within the slides, this plate being preferably cut away to accommodate a boss 0r extension of the carrier on which is fixed the circular plate 19, provided with the ring of detent holes 20 to lock the operating handle 21 of the tool shifting and adjusting mechanism.

This latter mechanism is preferably inclosed within a recess in the carrier, the only moving parts exposed being the lower end of the tool holder in operative position and the` handle 21. The tool holders'are shown as cylindrical members 22 and 23, provided with tool receiving sockets in their lower ends for the punch 24 and combined lap layer and riveter 25 respectively.

ently formed. each. however having the same The upper portions of these holders V22 and 23 are threaded and are adapted to be reciprocated or lowere'dand raised bytheir engagement with the interiorly ,threaded with bores registering With those `provided forthe `holders and thethrust falling orl striking; .upon the flipper hardened plates '29,5

rplace the punch in operative position, this punching too-l being operated after the first lap"is"la1d,iafter"which the pipe is again shifted. toreceive. the rivets, and the latter provided, WithyalinedI bores' to; reoeive 'thet trun'nions 30' and 81' formed onf-the upper ends of the nuts 26 and 27: g

The upper ends of these nuts. aredifl'err area-.beari1ig5-agai11st the platef29 thenut 27 being so'formed as toxreceive the gear Wheel"` of vbevel typef32 keyed thereoirinA any suit-= able4 manner, thegnut 26being1zcut away to provide clearance for the f bevel: gear 32, 'the lower ends 4of-eaoh however: 'beingformedi with ."gear teethI eut thereon that mesh with' eaoh other and provide for turning thesev nuts in*` unison, thesegears being.l 33 and 34 respectively.

The bevel beingv concentricr with the,` ring of" detentl holes 20, the trunnion preferably extending;l

gear 32 is;adapted'to.-1neshl with a,- gear 35 mounted.- With its ,trunnionr inthe vplate ll5, agsuitableboss 37 being formed rthereon to provide` abearingfandwl 2l :previously 19, those shown iny vthe fdr'airingv providing i for-ani'adjustment of one sixty-fourth ofan VV'ineh lin #a fone: and three--eighths ,stroke shown, r'one revolution of the .handle leoni.-

Various-other vmethods maybe evolved l for. f

turning;l the nuts which may be entirelyj threaded, or v only for theadistanee-4 'Where' there is complete"` travel O-Lhefthreads of the tool holdersg-'andf other, featuresflmay b e altered Without departing. fromV the spirit.-

of the in'vention.VV i, t .f i

The `operation Will be readily understood,

the two sections of -pipe` toV be j'oined being,

approximated on thestak'e and; the ends.

forced togetherthe distaneelrequired for the" lap, the lapping toolY isibrought intozproper adjustmentfto force `down or lapzy thefbell formed' onnthelendV ofthe inner portion of.

the lapv or inner section'.

For this purpose the shaftand. eccentricwith the-carrier inust-be In apositiongudgedV by the experience an'd'skill Iof rtl1e"1operator,-

the-handle beingturned.contra-clockwise to broiiglft into the'plane of the lapping tool, the shaft being disengaged and the carrier ancluivetiiiggtool adjusted to accommodate the,.- increaseofthe-thie1niess or length of the rivet. f

lVith the riveting.oompleted, it being understood: "that when the Vlatter Were A inserted the; A'heads Were necessarily and preferably.

inside vthe ,'pipe, the apipefis again shifted 'I outward until-the' ou'tsi'delap or out-side bell7 LCom'es under the lap; layingtool, the latten ben'igwlowered or xadvanced from" the' :last position, by turningthe handle contra# clockwise .afeiv degrees or -detentsz7 to bring' the stroke: nearerthe stake.

Shouldsuc-lr .an emergencyarisel .after the clutch.A has been vthrown,-tlie. toolf iny posit-ion may be -relieve'd by `quickly turning,- the A'ha'n- ,videdithat-'it keyvvays cutin the holders, a

platedd holding thefsame AinAV position. Air anvil 45 a1id `di'e-i6'arednserted inthe stake :7 in:v proper positionsg liVhat I claiinzis: f f 1. Apnnohingftool carrier, comprising in combinationwvith a :press .adapted to recipro-` -ldle-.2l;in.the proper direction, or the advance.

cate'saidfearrier, of; a carrienyintermeshing gears mountedl therein, and lafpluralityofV tools. mounted, 1n said` carrierzand@.so'conF nected by said intermeshing.` gearsthat-x saidy of operative position.

2. A'lpunehing( tool carrier having Ya plurrality of" bores thereinparallel ,tol'ande adjacent Vone another, Atool' holders'. adaptedfto 'slide thereinamembers engaging f saidy holders to effect thel movementand;y adjustment thereof, Tand: means. to move said er: ,engaging members Vin unison;-lr l V 3J In a pipe making. machine. provided 'tools may; be alternately, throivaii into or v'out with a stake and means torecip'rooate` a tool l' carrier, .the `eombir'iation of a tool." carrier adapted to be 'reciprocated yby said recipro` eatingmeans,V a pair-of: tool .f holders fadapted to hold tools,; and: be movably mountedf in. y saidf` toolfearrier, and; geared interconnecting lneansto move' one-or the Yother fof' said holders' intermediate the ends of their stroke, .sol as to perform operations(V onmateriaflsY re-- quiringA a vvariation of` the? strokeof7 the-tool carriedtherebyf 4. lnapipeseanier provided lwith ahead, stake-.and means-tof.reciprocate a tool carrier'A reoiproeally.inountedinsaid head, the.' combination of aftoolf carrier .provided With` Va pairJ of.Y bores.' parallel a to l yeach other and in' seamer, and entering a. recess insaid carrier,

jline. with.. theQaX-is of: the` stake. on'- said. advance vthe-lapping tooleandgthe reverseto tool holders slidably mounted in said bores and of such length as to be housed therein, and means mounted in said recess to connect said tool holders, whereby, When one is projected from said carrier, said other tool holder With its tool Will be drawn out of operative position in relation ,to said stake.

5. A round seamer for riveting pipe, comprising a frame having an arm extending over a stake, a head on said arm, a stake, a tool carrier slidably mounted in said head, means to slide said carrier toward and from said stake, a pair of threaded tool holders slidably mounted in said carrier, threaded members mounted in said carrier and adapted to engage said threaded tool holders, and means to move said threaded members, whereby said holders are alternately extended from said carrier, that tools carried therein Will alternately be in operable rela-tion to said stake.

6. A round seamer for riveted pipe comprising a frame, an arm, a head on said arm, a stake on said frame in line with said arm, a reciprocating tool carrier, means to reciprocate said carrier insaid head, a pair of threaded tool holders mounted in said carrier, means to guide said holders, threaded nuts engaging said threaded tool holders and revolubly mounted in said carrier, and means to revolve said nuts in unison Whereby said tool holders are alternately projected from said carrier.

7. A seaming press comprising in combination with a head and stake carrying frame, together With driving means, of a tool carrier reciprocatively mounted in said head, a punch slidably mounted in said carrier, a combined lap laying and riveting tool slidably mounted in said carrier and in the same plane With said stake and punch keys adapted to engage keyvvays in said punch and tool, and gears connecting said punch and tool, whereby one or the other will be in operative and adjustable relation to each other and to Work carried on said stake.

8. A seaming machine for seaming pipe, comprising a frame, a stake supported thereon, a head, a sliding carrier mounted in said head, means to move said carrier, a pair of tool holders slidably mounted in said carrier and adapted to hold tools, means engaging said holders to slide the same in opposite directions, gears on said engaging means, means to turn said gears to move said tool holders to adjust tools held therein or alternate the operative relation thereof, and means to lock said means to turn said gears, intermediate the end positions of said tools.

FRANK Y. PEARNE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

